Power Amplifier HD X21000 
Power Output 16Ω stereo: 1000W x2
Power Output 8Ω stereo: 2000W x2
Power Output 4Ω stereo: 4000W x2
Power Output 2Ω stereo: 8000W x2
Power Output 8Ω bridged: 4000W x1
Power Output 4Ω bridged: 8000W x1
Number of Channels: 2 Channels
Speaker Output Modes: Stereo/Bridge/Parallel
Speaker Frequency Range: (20Hz-32kHz) ±0.5dB
Power Supply: 110-240V AC 50-60Hz.
Heat sinks: 3 PCS
Class: D
Power supply requirements: 110V ～ 240V/ 50/60Hz
Dimensions (H x W x D): 88 x 483 x 350 mm
Weight (Kg): 6.3kg